Toy helicopter.



J. W. PECINOVSKY.

TOY HELICOPTER.

APPLICATION FILED MAR. I8. 1916.

1 3 9%., Patented Jan. 30, 1917.

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J. W. PECINOVSKY.

TOY HELICOPTER.

APPLICATION FILED MAR. 18, 1916- II ,21 3.9% Patented Jan. 30, 1917.

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lt ll fj j'GSElI-I \V. PECINO'VSKY, OF WEBB CITY, MISSOURI.

TOY HELIOQPTER.

Specification of Letters Patent.

Patented Jan. 30, 121i? Application filed March 18, 1916. Serial No. 85,176.

To all whom it may concern:

Be it known that T, Josnrn TV. PECINOV-- snr, a citizen of the Uni ed States of America, residing at lVebb City, in the county of Jasper and State of Missouri, have invented new and useful Improvements in Toy Helicopters, of which the following is a specification.

My present invention relates to improve: ments in toy helicopters, and pertains particularly to the construction of the screw or propeller and the means for operating it.

The primary object of the invention is the provision of a propeller of this type from which the greatest efliciency may be attained when it is used in connection with lifting a load, as in a flying machine, or lifting a toy, and to this end the invention consists in certain novel combinations and arange ments of parts of the propeller and actuating device as will hereinafter be more clearly pointed out.

In the accompanying drawings I have illustrated a complete example of the physi cal embodiment of my invention and a modified form of driving means for the propeller, constructed according to the best mode I have so far devised for the practical appli cation of the principles of my invention.

Figure 1 is a top plan view of the propeller constructed according to my invention. Fig. 2 is a side or edge view of the propeller wheel showing a modified form of driving or actuating device. Fig. 3 is a perspective view of the toy at the initial position for flying the propeller wheel. Fig. 1- is a. perspective view showing the flying wheel or propeller just before it is freed for its flight. Fig. 5 is a perspective view of one of the two actuating members. Fig. 6 is a perspective view of the other actuating member.

The propeller or wheel may be made oi any suitable light and strong material such as wood, tin, aluminum, etc., and it may be fashioned in different ways. In the preferred embodiment of my invention however, I have illustrated the propeller as made of thin metal and formed with four blades 1 suspended between the outer ring 2 and the central hub 3. The ring 2 is of flat thin metal, and the blades 1 each has a perforated lug 4 through which the rivet 5 is passed to secure the blade firmly to the ring. At their inner ends each of the blades is attached to the hub 3 by means of a pair of rivets or bolts 6 6 so that the blades and ring are rigidly and ecurely fixed together. Spaced at regular intervals around the outer periphery of the ring 2 are a series of vanes 7 which are secured to the ring by means of bolts or rivets 8, and these vanes, it will be noted are located between adjoining blades opposite the spaces between the blades.

The hub 3 has mounted therein a. shaft or stem 9, and in Fig. 2 I have illustrated a pair of bevel gears 10 and 11, the latter on a shaft 12 supported in bearings 12 and 13, which shaft revolved to operate the stem or shaft 9 and thus rotate the propeller wheel. This modified form of the driving apparatus is designed for use in flying machines of the helicopter type where the machine is propelled by the propeller wheel and the ascent and descent of the forwardly traveling machine accomplished by tilting the shaft 9 from the vertical.

(The preferred use of the invention is illustrated as a toy in Figs. 3 to 6, and here an interesting, entertaining and instructive apparatus is provided by utilizing the two actuating members for rotating the shaft 9 by passing these actuating members or rolling them over the shaft. These actuating members are each grasped in a hand and the shaft is rolled between them. The member 20 is preferably a flat strip of wood or other material having at its rear end a pair of overhanging strips 21, 21 secured at the edges of the strip, and these two strips form guide flanges for the complementary actuating member. The number 22 indicates av handle or knob attached to the strip 20 by which the strip is held in the hand. The complementary member 23 is a strip similar to the strip 20, and at its front end is provided with two overlmnging strips 24:, 24: forming guide flanges for the member 20. This strip is also provided with a hand grasp 25 to be held by the hand, preferably the left hand, when actuating the toy.

The operation of the toy is apparent from the drawings especially F 3 and ('3. In the first figure the shaft 9 is frictionally held between the two strips 20 and 23 and these strips are to be held in the right and left hands of the operator. The shaft it will be noted is held between the flanges 21 and 2%, as well as between the two strips 20 and 23. Now when the strip 20 is moved to the rear with relation to strip 28, or the :3 run! strip 23 is moved to the front with relation to strip 20 as would be done by the left hand person, the shaft is rolled by frictional contact'between the strips and when freed, the propeller wheel with its impetus from the actuating strips, glides upwardly, and sails gracefully through its course or flight. In its ascent the helicopter rises, due to the rotation of the blades and vanes, but the horizontally disposed ring 2, acts as a plane and insures forward progress to the propeller wheel in addition to the ascent of the wheel. The relation between the blades and vanes, and the flat ring causes an upward and forwardly moving flight, the angle of the blades varying to suit different conditions, but the ring remains horizontal at all times with relation to the perpendicular shaft. The ring also acts as a stabilizer and prevents undue tilting of the propeller wheel, maintaining the wheel on an even level when not positively tilted by proper devices. The ring. 2 also serves to prevent excessive commotion of the air in its resistance to the blades and vanes, as the propeller operates. a

From the above description taken in connection with my drawings it is evident that I have provided a device which fulfils the conditions of a comparatively perfect device of this character.

hat I claim is 1. The combination in a toy apparatus of a helicopter propeller having a shaft with a pair of strips each having a hand-grasp and each strip formed with a pair of flanges adapted to guide the other strip.

2. The combination in a toy apparatus of a helicopter propelle and its shaft with a pair of strips each having a hand grasp and each strip having upper and lower overhanging flanges adapted to guide the other strip, and said flanges located at the remote ends of the strips.

In testimony whereof I ailix my signature.

JOSEPH W. PECINOVSKY.

Copies 01 this patent may be obtained for five cents each, by addressing the Commissioner of Iatcnts. Washington, D. O. 

